Certificates of Analysis
Third-Party Tested.
Every Single Batch.
All truechem peptides are independently tested for purity, identity, and sterility. COAs are provided with every order and published here for full transparency.
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How to Read a Certificate of Analysis
What to look for — and why most suppliers don't want you to know this.
01 / Purity (HPLC)
Percentage of actual compound vs. impurities. Our standard: 99%+
99.65%
SPEC: ≥99%
02 / Molecular Weight (MS)
Identity confirmation. Verifies correct compound.
4960.4
EXPECTED: 4960.37
03 / Sterility & Endotoxins
Bacterial contamination. Many suppliers skip this.
<0.25
LIMIT: <0.5 EU/mg
Red Flags: Signs of a Fake COA
- ✕No independent lab name — in-house testing only
- ✕Batch numbers that don't match your product
- ✕Missing or expired test dates
- ✕Only purity listed — no identity or sterility data
Need a specific batch COA?
COAs are available for every batch we've ever shipped. Contact us with your order number.
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